Excavator controlling mechanism.



J. B. WEBBER, JR. EXGAVATOR CONTROLLING MECHANISM.

APPLICATION FILED MAR. 24, 1908. 91 0,61 7. Patented Jan. 26. 1909 2 SHEET8SHBET 1A whammy INVENTOR TTONNII' r in W.

WITNESSES J. B. WEBBER, JR. EXOAVATOR CONTROLLING MECHANISM.

APPLICATION FILED MAR.24,190H.

Patented Jan. 26. 1909 2 SHEETS-SHEET 2 4 6 WW w md w P F n M I I/IVPIl/ BuJ,.//

wrrwzssss (AV A Lari/M 45 loom STATES PATENT OFFICE.

JOHN B. WEBBER, JR, OF TOLEDO, OHIO, ASSIGNOR TO THENULCAN IRON WORKS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

EXCAVATOB CONTROLLING MECHANISM.

Specification of Letters Patent.

Patented Jan. 26, 1909.

To all whom it may ccncem:

Be it known that I, JOHN B. WEBBER, Jr., a citizen of the United States, residing at T0- ledo, Lucas county, Ohio, have invented a new 5 and useful Excavator Controlling Mechanism,

of which the following is a specification.

This invention relates to the driving and control of mechanism, especially to permit of more general handling in operation.

This invention has utility when embodied in power driven machines, as excavators. When embodied in such machines, the operator, from his station on the platform, 'may conveniently and rapidl control the working member of the mac 'ne, particularly in thrusting. In connection with this operation, the platform may be quickly swung to and fro and the excavator truck moved backward and forward.

Referring to the drawings: .F' ure 1 is a side elevation of an embodimento theinvention in a power shovel, parts being broken away; Fig. 2 is a detail view on an enlarged scale of a portion of the connection from the glatform to the prime mover on the boom;

ig 3 is a section on the line III-4H, Fig. 2; ig. 4 is a fragmentary transverse section, taken medially of the excavator, showing the clutch connections from the horizontal shaft to reverocxl 'y drive the vertical shaft, being on the line I IV, Fig. 5,- Fi 5 is a section on the line VV, Fig. 4,- and Fig. 6 is a fraglongitudlnal section, taken medi- Imentar{-l ally of t e excavator, showing the clutch con- .35

nections for platform swinging and truck pro ll'ing.

truck 1, mounted on wheels 2, carries the track 3, on which travel the rollers 4 sustaining the platform 5. Pivotally mounted adjacent one end of thehplatform .5is the ad justable boom 6, in which is the movable dirooting and thrusting member 7 for the working member or shovel 8.

On the platform 5 is a controlling device irising hand lever 9, connected to hell cran lever 10 (Figs. 2 and 3), to reciprocate the cone segment 11.

Engaging the outer control of reversible prime-mover 13'on the boom 6 so that wheel 14 ma be driven to cause the directing member to throat or withdraw the shovel 8. Carried b the-platform 5 is prime mover l5, whic, through wheel 16 and shaft 17 actuates wheel 1.8 on shaft shaft 19.. Fixed on this shaft 19 so that it may have no relative movement, is the clutch element carrier or disk 20 (Figs. 4 and 5). Slidably mounted in this carrier are the diametrically opposite radially movable blocks 21, 22. Block 21 is connected by links 23 to reciprocate one end of arm 24; thereby rocking shaft 25, which through arm 26 is'connected to the friction hand clutch element 27; The other end of band 27 is oonnected,by bracket 28 1,0 the carrier 20, This hand 27 extends around the eriphery of the clutch face flange 29 carried y ear wheel 30 loosely mounted on'shaft 19. The wheel 30 is in mesh with gear wheel 31 on shaft 32. Frofn block 22, links .33 extend to arm 34 on rock shaft 35, which shaft .35 has an arm 36 connected to one end of friction band or clutch element 37, the o posits end of which band 37 is connected to ill t 38 on the carrier 20. This clutch 37 surrounds the Peri hery of clutch face on the flange 39 carried face carrying flanges on the wheels 38 .apdAO extend toward or oppose each other. The wheel 40 is also in mesh with the wheel 31 As herein shown, a ortion of shaft 19 is tubular, the bell crank ever s11 being so connected up as to reciprocate the stem 42 in-the shaft 19. This stem orrod 42 has ,a crosshead or 'spline 43 englagmgcoillaa 44 i0 reciprocate this collar re ativel to h r a 119, as also relatively to the .clutc clement carrier 20. Collar 44 is connected 1:) link 45 to the lever 46, the oppositeend 0 which lever is pivoted to the hub of t-he'carrier 20, while medially there is a link 47 connecting the lever 46 with the slide block 2 1. hiagnetrically disposed as to link 45, the link g8 com nects the collar 44 to slide block 22.

Splined on shaft 32 (Fig. 15) are collars {$9,

and inner faces of the cone segment 1 l, is the 50, controlled through connections 551 (Fig. link 12, the operation of which effects the 1). Collar 49 is connected to gthestam 52in y wheel 40. The clutchsegment ]1 will bring about the same con-- same axis as theboom 6.

boom, member 12 will not be rec1proc'ated,

the tubular shaft 32, which stem 52, by key l while shaft 19 is running,) is that when but 53 is attached to clutch member 54.

tion clutch member 54 serves to connect wheel 55 to drive wheel 56 on propelling shaft 57, hiclrthrough the gear wheels 58 and 59 actuate the shafts ()U to which the traction wheels 2 of the truck are fixed. Collar 50 is directly connected to friction clutch member 61, which serves to connect the bevel gear 62, which like wheel 55 is also loosely mounted on the shaft 32. The gear 62 is in-mesh with gear wheel 63 on shaft 64, which through gear 65 and toothed way 66 may bring about the swinging of platform 5. The hoisting of the shovel 8 is brought about through flexible connection 68, while the hoisting and lowering of the boom 6 is accomplished through the flexible connection 67.

Operation: Adjustments 01 the boom, as for higher dumping or lower cutting, may be had, and the control of the prime mover on the boom not affected by such change, for the cone segment of the slide 11 is on the In raising the but will move upward on the cone segment, while in this new position reciprocation of the trol as in any other position of the boom. Accordingly, regardless of the positionof the boom,'tho control lever 9 for the boom -cngines 13'is always in the same place when power is oil', and is with the. bank of lovers on the platform at the opcrators station. in this convenience in handling the shovel, is

, added a quick and easy control for swinging and traveling 1o dump as desired. This is brought about through the connections at shaft 19, which shaft may be considered as continuously driven in one direction. In the position shou n in Fig. 4, with the. collar 44 at one limit of movement, the link.48 has i band 37 about the clutch face on flange 39 of the wheel 40.

drawn the slide 22' inwardly, while link 45 through lever 46 has thrust the block 21 outwardly, thus through the link 23, crank arm 24 so rocks the shaft 25 that its arm 26 will pull the friction band 27 against the flange 29. With the collar 44 in a medial position, both friction bands 27 and 37 are free.

With the collar 44 thrown to its limit of movement toward the carrier 20, link 45 holds lever 46 so that friction band 27 is loose, while the driving, instead of being in one direction through wheel 30 to shaft 32,-

is now in the opposite direction through the wheel 40 to shaft32, for the link 48 has thrust the block22 outwardly, and thereby through he link 33, and arm 34 so rocked the shaft 35 hat its arm 36 has tightened the friction A considerable advantage in this band clutch, (in addition to coupling slightly thrown in, the direction of rotation is such that the friction on the clutch face at once aids in further applying the driving connection. The shaft 32. is thus readily connected for either direction driving. As the propcllim mechanism is connected by a friction clutch 54, it may be thrown in while shaft 3?. is running, and while the truck is thus traveling, the platform may be swung by throwing in'the friction clutch 61. Accordingly this system of clutches, and the control device for the boom prime mover, combine to contribute to sure and rapid handling of the power machine.

W hat is claimed and it is desired to secure by Letters Patent is:

1. A power machine having a platform, a boom on the platform, mechanism for ad- 'usti'ng the boom, a prime mover on the ooin, a controlling device on the )latform for the prime mover, the boom adjustable 8b relatively to the controlling device and connections between the controlling device and I the prime mover to accommodate the various adjustments of the boom.

2,. A power excavator having a platform, a boom mounted on and adjustable relatively to the platform, a reversible prime mover on the boom, a control device on the platform, and connections from the control device to the prime mover permitting adjustment of 9b the boom.

3. A power excavator having a platform, a vertically adjustable boom mounted on the platform, a reversible prime mover on the boom, a control device on the platform, and self-adjusting connections from the control device to the prime mover automatically taking care of the various positions of the boom. I

4. A power machine comprising'driving mechanism, a shaft, a clutch element carrier fixed on the shaft, opposing wheels each having'a clutch face adjacent the carrier, and a control means effective to connect either wheel to said shaft to'actuate the driven mechanism in reverse directions. 7

5. A power machine having a truck, a' platform on the truck, .a boom on the platorm, a working member carried by the boom, platform swinging and truck propelling' mechanism, and reversible driving connections therefor comprising band clutches.

6; A power excavator having a swingable platform, a shaft for swinging the platform,

acting tore- 0 verse the shaft and c ange tie direction of swing of the platform. i

7. A power excavator having a'truck, a shaft for operating the truck, and band clutches oppositely acting to reverse the 5 shaft to change the directionof' truck travel 8. A power machine having a platform, swinging mchanism for the platform, a reversible shaft for driving the swinging nwchanisni, and a friction clutch tq connnect the shaft and mechanimn.

9 A power machine having a truck, propelling mechai'iisni for the truth, a swihgablc platform on the trunk, :1 prime mover 0n the platform, a reversible shaft actuated by thn prime mover, and a friction clutch to connect 1:.

JOHN B. wumniz, JR.

Wi messes M. W. PLATT,

GEO. E. KIRK. 

